Field Guide

The golden redhorse is a smaller-bodied sucker with large scales and a short dorsal fin. It occurs in Ozark and northeast Missouri streams.

The crystal darter is Endangered in Missouri. Formerly known from many river drainages in the east-central and southeastern parts of our state, this pale, very slender darter apparently now lives only in the Gasconade and Black rivers.

In Missouri, the harlequin darter occurs only in our southeastern lowlands, in flowing streams and ditches with sandy bottoms. It is State Endangered because its small numbers and limited range make it vulnerable to extirpation.

The greenside darter is one of our largest darters. It has olive to yellow sides and back with scattered red spots and vertical blotches often arranged in a V or W pattern. It is one of the most abundant and widespread darters in the Ozarks.

Two small black spots at the base of the tail fin distinguish the Niangua darter from all other darters in Missouri. Known from only a few tributaries of the Osage River, this dainty, colorful fish is a nationally threatened species.

The fathead minnow has a blunt, rounded snout, rounded fins, a dusky stripe along the side, and a spot at the base of the tail fin. It is most abundant in pools of small prairie creeks because it tolerates rather high temperatures, extreme turbidity, and low oxygen.

The southern redbelly dace has two dusky stripes separated by a broad golden stripe along the side. The bellies of males turn brilliant red in spring. It lives in small creeks and spring branches of the Ozarks with permanent flow of cool, clear water and a gravel or sand bottom.